when the capacitor is grounded the grounded plate is at potential =0.but the other plate will have its charge and also a potential due to it.since S2 is not closed,thus the potential of the inner plates remain 30 and 20 only. V1=30-0=30 V2=20-0=20 thus ans is d) hope this helps rate if its correct !!!!!!!!!!!!!!!!
Varsha
be cool,
tomorrow is what we make it today,
so if u can dream it , u can make it .
life is an ice cream ,eat it before it melts away!!!!!!!!!
Moderation Team
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